tencent cloud

Serverless Cloud Function

Release Notes and Announcements
Release Notes
Announcements
User Guide
Product Introduction
Overview
Related Concepts
How It Works
Strengths
Scenarios
Related Products
Purchase Guide
Billing Overview
Billing Mode
Billable Items and Billing Modes
Function Computing Power Support
Free Tier
SCF Pricing
Billing Example
Payment Overdue
Getting Started
Creating Event Function in Console
User Guide
Quota Management
Managing Functions
Web Function Management
Log Management
Concurrence Management
Trigger Management
Function URL
A Custom Domain Name
Version Management
Alias Management
Permission Management
Running Instance Management
Plugin Management
Managing Monitors and Alarms
Network Configuration
Layer Management
Execution Configuration
Extended Storage Management
DNS Caching Configuration
Resource Managed Mode Management
Near-Offline Resource Hosting Model
Workflow
Triggers
Trigger Overview
Trigger Event Message Structure Summary
API Gateway Trigger
COS Trigger
CLS Trigger
Timer Trigger
CKafka Trigger
Apache Kafka Trigger
MQTT Trigger
Trigger Configuration Description
MPS Trigger
CLB Trigger Description
TencentCloud API Trigger
Development Guide
Basic Concepts
Testing a Function
Environment Variables
Dependency Installation
Using Container Image
Error Types and Retry Policies
Dead Letter Queue
Connecting SCF to Database
Automated Deployment
Cloud Function Status Code
Common Errors and Solutions
Developer Tools
Serverless Web IDE
Calling SDK Across Functions
Third-Party Tools
Code Development
Python
Node.js
Golang
PHP
Java
Custom Runtime
Deploying Image as Function
Web Framework Development
Deploying Framework on Command Line
Quickly Deploying Egg Framework
Quickly Deploying Express Framework
Quickly Deploying Flask Framework
Quickly Deploying Koa Framework
Quickly Deploying Laravel Framework
Quickly Deploying Nest.js Framework
Quickly Deploying Next.js Framework
Quickly Deploying Nuxt.js Framework
Quickly Deploying Django Framework
Use Cases
Overview
Solutions with Tencent Cloud Services
Business Development
TRTC Practices
COS Practices
CKafka Practice
CLS
CLB Practice
MPS
CDN
CDWPG
VOD
SMS
ES
Scheduled Task
Video Processing
Success Stories
Tencent Online Education
Online Video Industry
Tencent Online Education
Best Practice of Tencent IEG Going Global
API Documentation
History
Introduction
API Category
Making API Requests
Other APIs
Namespace APIs
Layer Management APIs
Async Event Management APIs
Trigger APIs
Function APIs
Function and Layer Status Description
Data Types
Error Codes
SDK Documentation
FAQs
General
Web Function
Billing FAQs
Network FAQs
Log FAQs
SCF utility class
Event Handling FAQs
API Gateway Trigger FAQs
Related Agreement
Service Level Agreement
Contact Us
Glossary

Examples

PDF
포커스 모드
폰트 크기
마지막 업데이트 시간: 2024-12-02 18:12:22
These examples provide code snippets based on Python 3.6 for your reference.
You can click scf-python-code-snippet to obtain the relevant code snippets and directly use them for deployment.

Obtaining Environment Variables

This example shows you how to obtain all or a single environment variable.
# -*- coding: utf8 -*-
import os

def main_handler(event, context):
print(os.environ)
print(os.environ.get("SCF_RUNTIME"))
return("Hello World")

Formatting Local Time

This example shows you how to output date and time in the specified format.
The SCF environment uses the UTC format by default. To output in Beijing time, you can add the TZ=Asia/Shanghai environment variable to the function.
# -*- coding: utf8 -*-
import time

def main_handler(event, context):
print(time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())))
return("Hello World")

Accessing TencentDB for MySQL Instance

This example shows you how to use the PyMySQL library for the database connection. You need to run the pip3 install PyMySQL -t . command under the project directory to install this dependent library.
Please note the following:
Configure the function in the same VPC where the TencentDB for MySQL instance is located to ensure the network accessibility.
Replace the database’s IP, username, password, name and other information shown in the codes with your actual values.
# -*- coding: utf8 -*-
import pymysql

def main_handler(event, context):

# Start connecting to the database
db = pymysql.connect(host="host ip",port=3306,user="user",password="password",database="db name")

# Use the cursor() method to create a cursor object
cursor = db.cursor()

# Use the execute() method to execute the SQL query statement
cursor.execute("SELECT VERSION()")

# Use the fetchone() method to obtain a single data entry.
data = cursor.fetchone()

print ("Database version : %s " % data)

# Stop connecting to database
db.close()


Initiating Network Connections in a Function

This example shows you how to use the requests library to initiate network connections in a function and obtain page information. You can run the pip3 install requests -t . command under the project directory to install this dependent library.
# -*- coding: utf8 -*-
import requests


def main_handler(event, context):
addr = "https://cloud.tencent.com"
resp = requests.get(addr)
print(resp)
print(resp.text)
return resp.status_code


Obtaining Webpages Using SCF and API Gateway

This example shows you how to access the URL through API Gateway while obtaining the HTML page by configuring API Gateway trigger and enabling integration response.
# -*- coding: utf8 -*-
import time

def main_handler(event, context):
resp = {
"isBase64Encoded": False,
"statusCode": 200,
"headers": {"Content-Type":"text/html"},
"body": "<html><body><h1>Hello</h1><p>Hello World.</p></body></html>"
}
return resp

Obtaining Images Using SCF and API Gateway

This example shows you how to access the URL through API Gateway while obtaining the binary image file by configuring API Gateway trigger and enabling integration response.
# -*- coding: utf8 -*-
import base64

def main_handler(event, context):
with open("tencent_cloud_logo.png","rb") as f:
data = f.read()
base64_data = base64.b64encode(data)
base64_str = base64_data.decode('utf-8')
resp = {
"isBase64Encoded": True,
"statusCode": 200,
"headers": {"Content-Type":"image/png"},
"body": base64_str
}
return resp


도움말 및 지원

문제 해결에 도움이 되었나요?

피드백